Ceramics

Due to their beneficial chemical properties, ceramics are especially important in plant engineering.  Ceramics also qualify for energy technology due to their extraordinary hardness.  By adding alloys and fibre materials their properties become extremely versatile.

  • Ceramics in general

    Milling ceramics

    Due to their unique material properties, technical ceramics are considered as one of the most capable materials of our time.  With the help of ceramic high-performance materials, applications can be realised where metals and plastics, due to their thermal resistance and wear, meet their limits.

    • Green machining

      In green machining, ceramics are present in their un-fired state.  This processing step is of particular importance when manufacturing components of complex geometry.  The aim being, to produce the component in question in as near a net-shape as possible before sintering.  We recommend the use of our diamond-coated Piranha milling cutters in their radius-, shank- or torus version.  HUFSCHMIED mini milling cutters in ball-nose- or torus versions and our PCD tools are best suited to this task.

    • White machining

      In white machining, fired greenware is machined.  This procedure can be optimised with our SHARP-Line tools.  The ultra-sharp cutter geometry only exerts a minimal force on the component and thus reliably prevents the break-out of small particles.

    • Hard machining

      Milling CMC ceramics

      Fibre-reinforced ceramics consist of a ceramic matrix and a ceramic reinforcing fibre.  This relatively new group of materials is often called Ceramic Matrix Composites (CMC) in technical literature.  Ceramic fibre composites are used in plant construction, for furnace linings, pumps for the chemical industry or for charging frames for heat treatments.  In recent times, CMC materials are used for engine parts in hot gas sections in order to reach higher combustion temperatures.

      CMC ceramics have an anisotropic and very often also an amorphous composition. This makes them very demanding to process.  They machine into a powder and do not absorb temperature. Therefore, for green- and white machining, predominantly PCD tools are in use.  HUFSCHMIED provides the helical PCD ball nose cutters P91 and P92 from its range.  For 3D machining, we recommend the solid-head PCD ball nose cutter P110. For drilling operations we have the solid-head PCD drill P201.

  • CMC ceramics

    Milling CMC ceramics

    Fibre-reinforced ceramics consist of a ceramic matrix and a ceramic reinforcing fibre.  This relatively new group of materials is often called Ceramic Matrix Composites (CMC) in technical literature.  Ceramic fibre composites are used in plant construction, for furnace linings, pumps for the chemical industry or for charging frames for heat treatments.  In recent times, CMC materials are used for engine parts in hot gas sections in order to reach higher combustion temperatures.

    CMC ceramics have an anisotropic and very often also an amorphous composition. This makes them very demanding to process.  They machine into a powder and do not absorb temperature. Therefore, for green- and white machining, predominantly PCD tools are in use.  HUFSCHMIED provides the helical PCD ball nose cutters P91 and P92 from its range.  For 3D machining, we recommend the solid-head PCD ball nose cutter P110. For drilling operations we have the solid-head PCD drill P201.

    • Increased profitability and process stability

      Within the sponsored MAI Carbon Leading-Edge Cluster Project “MAI ProCut“, HUFSCHMIED tools, for the first time, managed to reduce the time previously spent on grinding CMC ceramics by 80% – by machining them with a geometrically defined blade. In cooperation with the Deutsches Zentrum für Luft- und Raumfahrt (DLR; German Centre for Aerospace), this was the first time that a cost-efficient processing of pertinent turbine components was successful.

      Should you have any questions about this material and its machining, please contact our Engineering Team.  We are looking forward to find a solution for your processing task.

  • Oxide-Oxide compounds

    Milling oxide-oxide compounds

    Fibre-reinforced ceramics, made from oxide-oxide compounds, i.e. oxidic compounds, are becoming increasingly popular in many sectors of mechanical engineering and plant construction.  Furthermore, oxide ceramics can have applications in any situation that requires hot or abrasive media to come into contact with components.

    Similar to the classical processing of ceramics, there is green machining and white machining in fibre-reinforced ceramics, too.
    In green machining, the milling of the ceramic material takes place in its un-fired state.  For this task, we recommend the use of our DIP diamond-coated tools with our DIP3S coating, a nano-crystalline coating.  Among them are the Piranha torus cutter and ball nose cutter with DIP3S and the mini milling tools HM9X5.

    • Reduced cutting force for intricate contours

      Due to their cutter geometry, HUFSCHMIED tools allow for a significantly reduced cutting force when machining oxide-oxide compounds.  Thus, even intricate contours can be produced without break-outs.

      For white machining, we recommend the use of our PCD tools P100ECO and P100RECO. Because of the great hardness and high abrasiveness of fired ceramics, these tools present the most efficient way to process components.

Technical Consulting for the processing of ceramics

Increase your productivity when milling and drilling ceramics

In order to increase the productivity of your company, we can support you with technical advice for the milling and drilling of ceramics. We can analyse the requirements of your company and develop tailored technical solutions for you. With our expertise and the options available at our HUFSCHMIED engineering centre, we can optimise your manufacturing processes.